Load Specifications
Load data in caliber 6.5 x 63 R Messner Mag. with .264 | 90gr | Impala LWHV LS bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Alliant Reloder-16.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 57,522 psi | 90% | 3461 fps | 98.4% |
| Accurate 3100 | <<locked>> | 96% | 54,447 psi | 85% | 3461 fps | 99.2% |
| Accurate 4350 | <<locked>> | 88% | 55,680 psi | 87% | 3527 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 84% | 56,565 psi | 89% | 3491 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,680 psi | 87% | 3553 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 98% | 57,392 psi | 90% | 3609 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,636 psi | 86% | 3465 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,477 psi | 87% | 3586 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,942 psi | 89% | 3609 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,434 psi | 87% | 3543 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,029 psi | 89% | 3612 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,143 psi | 85% | 3540 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,444 psi | 79% | 3517 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,549 psi | 85% | 3632 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,970 psi | 88% | 3589 fps | 97.6% |
| Bofors RP3 | <<locked>> | 82% | 56,043 psi | 88% | 3488 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 57,029 psi | 89% | 3612 fps | 97.9% |
| Bofors RP7 | <<locked>> | 86% | 54,911 psi | 86% | 3458 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 82% | 55,825 psi | 87% | 3497 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 88% | 57,087 psi | 89% | 3573 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,144 psi | 88% | 3520 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 96% | 57,421 psi | 90% | 3547 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,028 psi | 88% | 3494 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,269 psi | 77% | 3553 fps | 97% |
| Hodgdon Superformance | <<locked>> | 88% | 57,377 psi | 90% | 3602 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,883 psi | 58% | 2290 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,985 psi | 88% | 3471 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,825 psi | 87% | 3488 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,043 psi | 88% | 3484 fps | 98.7% |
| IMR 4831 | <<locked>> | 90% | 55,695 psi | 87% | 3510 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 98% | 54,824 psi | 86% | 3576 fps | 96.1% |
| Lovex S062 | <<locked>> | 82% | 56,927 psi | 89% | 3474 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,971 psi | 89% | 3491 fps | 99.6% |
| Lovex S070 | <<locked>> | 88% | 54,940 psi | 86% | 3471 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,025 psi | 82% | 3419 fps | 98.9% |
| Norma 203B | <<locked>> | 82% | 57,595 psi | 90% | 3537 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,753 psi | 89% | 3547 fps | 97.5% |
| Norma MRP | <<locked>> | 96% | 56,942 psi | 89% | 3645 fps | 99% |
| Norma URP | <<locked>> | 90% | 57,145 psi | 90% | 3560 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,724 psi | 87% | 3599 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 90% | 56,101 psi | 88% | 3553 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,128 psi | 85% | 3524 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,536 psi | 59% | 2339 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,463 psi | 87% | 3471 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,144 psi | 88% | 3602 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,332 psi | 87% | 3540 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,014 psi | 89% | 3629 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,154 psi | 79% | 3556 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 84% | 56,115 psi | 88% | 3484 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,203 psi | 90% | 3517 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 94% | 54,940 psi | 86% | 3530 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 86% | 54,911 psi | 86% | 3458 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,971 psi | 89% | 3491 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 56,927 psi | 89% | 3474 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,940 psi | 86% | 3471 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,043 psi | 89% | 3537 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,796 psi | 87% | 3343 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,507 psi | 89% | 3428 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,476 psi | 85% | 3520 fps | 97.4% |
| Somchem S355 | <<locked>> | 84% | 55,811 psi | 87% | 3478 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 57,246 psi | 90% | 3566 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,811 psi | 87% | 3501 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 86% | 56,811 psi | 89% | 3442 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,535 psi | 87% | 3491 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 98% | 54,955 psi | 86% | 3465 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 82% | 57,464 psi | 90% | 3442 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,129 psi | 86% | 3497 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 96% | 57,130 psi | 90% | 3579 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,855 psi | 89% | 3625 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,201 psi | 87% | 3442 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,087 psi | 89% | 3573 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,346 psi | 85% | 3684 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,738 psi | 87% | 3488 fps | 97.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 53,925 psi | 85% | 3396 fps | 97.8% |
| Accurate 3100 | <<locked>> | 84% | 36,999 psi | 58% | 3081 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 42,786 psi | 67% | 3264 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 50,241 psi | 79% | 3373 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 49,066 psi | 77% | 3419 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 96% | 53,824 psi | 84% | 3540 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,372 psi | 81% | 3406 fps | 100% |
| Alliant Reloder-16 | 55.4 gr | 80% | 40,364 psi | 63% | 3255 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,224 psi | 72% | 3409 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 45,832 psi | 72% | 3340 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 46,920 psi | 74% | 3406 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,835 psi | 48% | 2979 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 36,956 psi | 58% | 3179 fps | 95.8% |
| Alliant Reloder-26 | 62.7 gr | 82% | 35,636 psi | 56% | 3182 fps | 96% |
| Bofors RP15 | <<locked>> | 94% | 46,340 psi | 73% | 3389 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 52,431 psi | 82% | 3425 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 46,920 psi | 74% | 3406 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,759 psi | 72% | 3268 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 52,518 psi | 82% | 3432 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 43,932 psi | 69% | 3297 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 46,325 psi | 73% | 3317 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 94% | 53,882 psi | 84% | 3478 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,377 psi | 60% | 3136 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 98% | 46,296 psi | 73% | 3481 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,105 psi | 68% | 3304 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,688 psi | 43% | 2057 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,866 psi | 83% | 3415 fps | 99.9% |
| IMR 4350 | <<locked>> | 82% | 43,613 psi | 68% | 3232 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,543 psi | 73% | 3287 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 40,814 psi | 64% | 3199 fps | 98% |
| IMR 7828 SSC | <<locked>> | 96% | 51,401 psi | 81% | 3504 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 53,577 psi | 84% | 3415 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,788 psi | 70% | 3245 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 43,134 psi | 68% | 3222 fps | 96.2% |
| Lovex S071 | <<locked>> | 90% | 38,363 psi | 60% | 3114 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 53,954 psi | 85% | 3471 fps | 100% |
| Norma 204 | <<locked>> | 84% | 46,543 psi | 73% | 3333 fps | 95% |
| Norma MRP | 63.9 gr | 86% | 40,611 psi | 64% | 3287 fps | 95% |
| Norma URP | <<locked>> | 80% | 41,742 psi | 65% | 3241 fps | 98.1% |
| Ramshot Grand | <<locked>> | 96% | 51,851 psi | 81% | 3520 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,611 psi | 64% | 3219 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 94% | 43,729 psi | 69% | 3301 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,326 psi | 44% | 2106 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,967 psi | 81% | 3402 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,849 psi | 77% | 3471 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,395 psi | 66% | 3274 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,538 psi | 64% | 3271 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 40,814 psi | 64% | 3314 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 49,501 psi | 78% | 3363 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 50,488 psi | 79% | 3386 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 45,121 psi | 71% | 3323 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 45,759 psi | 72% | 3268 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,788 psi | 70% | 3245 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 53,577 psi | 84% | 3415 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,134 psi | 68% | 3222 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,212 psi | 79% | 3415 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,443 psi | 77% | 3238 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,063 psi | 69% | 3176 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 47,906 psi | 75% | 3386 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 49,385 psi | 77% | 3360 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 38,421 psi | 60% | 3196 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 43,439 psi | 68% | 3245 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 47,181 psi | 74% | 3268 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,047 psi | 67% | 3238 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 45,469 psi | 71% | 3274 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 54,143 psi | 85% | 3389 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,830 psi | 67% | 3241 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 34,389 psi | 54% | 3077 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 53,098 psi | 83% | 3550 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,264 psi | 66% | 3196 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 44,106 psi | 69% | 3304 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,775 psi | 44% | 2949 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 48,631 psi | 76% | 3353 fps | 95.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 73 powders for 6.5 x 63 R Messner Mag. loaded with the .264 | 90gr | Impala LWHV LS. Winchester StaBALL HD delivers the highest muzzle velocity at 3,684 fps; across all powders the maximum-charge window runs from 2,290 fps to 3,684 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Bofors RP15, Hodgdon Retumbo reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Reloder-26, Norma MRP, Alliant Reloder-16 rank at the top here: for 6.5 x 63 R Messner Mag. with the .264 | 90gr | Impala LWHV LS they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.